An incomplete expansion engine is supplied with steam at 1.95 Mpa and 400C. Release occurs at 0.14 Mpa and exhaust at 50C. Test of the engine showed a brake steam rate of 12.2 kg/kwh and a mechanical efficiency of 82.5%. (a) Find the indicated engine efficiency (b) the brake mep (c) the ideal thermal efficiency of an incomplete expansion cycle operating under the same condition.

An incomplete expansion engine is supplied with steam at 1.95 Mpa and 400C. Release occurs at 0.14 Mpa and exhaust at 50C. Test of the engine showed a brake steam rate of 12.2 kg/kwh and a mechanical efficiency of 82.5%. (a) Find the indicated engine efficiency (b) the brake mep (c) the ideal thermal efficiency of an incomplete expansion cycle operating under the same condition.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.2P: 5.2 Evaluate the Prandtl number from the following data: , .

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Question

Provide a complete given and computation. Include all the decimals.

(a) Find the indicated engine efficiency

(b) the brake mep

(c) the ideal thermal efficiency of an incomplete expansion cycle operating under the same condition.

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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